Slicing machine



Nov. 29, 1932. w. J, CAMPBELL 1,889,539

SLICING MACHINE Filed July 5, 1929 2 Sheets-Sheet l NOV. 29, 1932. n w CAMPBELL v 1,889,539v

SLICING MACHINE Filed July 5', 1929 2 sheets-sheet 2 @Mmm Patented Nov.A 29, 1932 UNI-'r En.

PATENT OFFICE;

-WILLrAM .1.` CAMPBELL, Aor IlvnIAlvfAPoLIs,` INDIANA, Ass'IcfNoIr` To AMEaICANf-` sLICING MACHINE cOMIANY., or CHICAGO, ILLINOIS, A CORPORATION O F NEW YORK- sIzICING MACHINE,

Appneanonmedzruly 5.119295 seriarNo. 375,961. j

Myinvention relates to a'4 slicing machine andl particularlyfto 1 slicing machine ofthe type in Which a rotary and preferably motor driven knife isemployed. Onef object of my Y :"inventionris the provisionI of an improved mounting for the gauge plate of such a slicing machine. Anotherobjectis theprovislon of means for' adjusting the position ofthe gauge p1ate-in'relation'to the carrier yor member upon which it' ismounted. Another object is Athe provision Ofmeans fortiltably. adjusting the/.gauge plate and carrier. I Another object is the provision of improvedldrivmg' or actuatingmeans-.forsucha gauge plate.

15,*Another object is the provision'of improved.k

brakingmeansforisuch` a gauge-plate and its support, the brakingrmeans beingadapted to prevent unintended ork accidental changes:

Yadjusting excursion.` Y Other objects Willap- Y pear from time to time in the course. of the specification and claims.A Y Iwillustrate myv invention more orless diagrammatically in the;` accompanying drawings,V wherein Figure 1 isV arear'elevation ofthe device;` Figurer?J isaplan VieWYWith'parts lin secl j Y 801 plate E Is'provided with screwthreaded pins 3 "i tion;

Figure 2`; f f Figure 4 is a` sectionv onthelinelf-l of @.Fi'gure 2; f f u Figure 5 is a section on the line 5--5 of Figurejl;L p l Figure 6 is a section on the liney .6-6 ofV Figure. 2; n y 4m Figure 7 is a section similar. to Figure 3 j B generally indicatesthearotarylknifegwith Figure 'f'isf a section on the'lines 3 3 `ofA `adjustment of the'gauge plate up orrdOWnV 'mit' the y'necessary adjustment.`

its pulley Ell-driven by the. belt B2i; .fromvanyf Y Vsuitable power source not herein shown;-

G ndicatesiavguard platefor: the -frontl of the knife the `edge offthe guard platexseat` ingwithin the recess B3 infthefront facejf 55 ofthe knife. VGhindicates aV guardportion@V ofi the frame the edgeof Whichpenetrates; the 'rear'recessBofthe knife.y Y

D generally indicates 1 any suitable work supporting f lcarriage f mounted1 for slidable 69 movement, forexample on the track D1, .past i the cuttingvedge'of the :knife and acrosslthez face of theguard plate C. I

generally'indicates a gauge'plate which v maybe morevor less bowedfinrvertical sec#v 69 tion, as: indicated for example atzEl inFigfj ure3: Thisfbowingis preferable orxnecessary,"owing to the bowed contour ofthe cutting arc:of the knife, which is causedl by the inclination ofthe axis vof the knife, as-70` shown', for example x in Figure 2, in ordersto" bringthe cutting arc forwardly of the plane of. thei guard plate Cl ReferringftoAr the s mounting of: the gauge plate f I illustratel` a supporting structure generally indicated as. 5" E2 with the upward projectionE3 adaptedf fto receive andI support theV gauge platejE;

The details of the connection'or` supportare shown forrexamplein Figure 5. rPhe gauge E@ projecting fromiits rear face. Thesev pins receive the nuts 1E* Withtheir securing' heads E5. The heads may be channeled as at .E6v to 'receive' a screw driver orl the like. 4 The members Effpenetrate the apertures E" in4 the structureEaf and the heads E5 abuty againstnthe shoulders E8 associated with said Y apertures. It will be seen in Figure 5 that thexclearances maybe such as yto permit on or.l tiltably,I relation to the VVVsupporting structure.' A prime purpose of'this adjust-v v ment is to permit the gauge plate to beadj usted to conform closely tothe cutting edge` of.' the-kniia.` As'shown in Figurell the' 95%' arcuateedge E9 of the gauge plate E should' conform yvery closely to thercutting edge of Y v the knife and theclearancebetween `the apertures E7 andthefnutsEiissufficient torper- 100i The portion E2 of the support extends outwardly above the frame A and the frame is recessed therebeneath as at A5, to provide a housing for the transmission means through which the gauge plate and its support are actuated. The housing A5 is opened at the top to receive a plate G which may be screwed or secured, as by the screws G1, to the bosses G2 depending from the bottom of the member E2. These screws are made accessible through apertures closed by the screwthreaded pipe plugs G3, axially aligned with the screws G1 Secured to or forming part of the plate G are the bearing lugs G4 through which passes the stem G5 the inner end of which is rotatably mounted in the frame as at G5. Secured to the outer end thereof is the knob G7, which may be made of any suitable material. I indicate it as made for example of bakelite with the inner metal sleeve G8, the structure being pinned upon the shaft G5 as by the pin G9. It will be understood that Vthe sleeve G8 may be secured in relation to the knob G7 in any suit able manner, as for example by a press lit. In the initial assembly the knob may be held in position on the shaft G5 as by the set screw G1". The knob is apertured as at G11 G11, and when the desired adjustment is obtained an aperture to receive the pin G9 may be drilled through sleeve and shaft and the pin inserted. The inner face of the knob G7 is indented as at G12 to receive the spring pressed ball G13 mounted on the frame. It will be understood that when the gauge plate is in neutral position, the ball G13 seats in the indentation or recess G12, and serves as a locking means. This locking action can of course be easily overcome by manual rotation of theknob, but it is sufficient to prevent accidental and undesired rotation of the knob. I also provide a limit member or projection G14 on the knob opposed to a limit pin G15 on the frame. The proportion of parts is such that the entirerange of adjustment of the gauge plate is effected by a single substantially complete rotation of the knob G7, and the member G14 serves as a limit at each end of the rotation of the knob.

Mounted and guided in a recess G20 in the plate G is a segment nut H which is yieldingly downwardly thrust as by the spring H1. It may be guided as by the guide lug H2 penetrating the aperture H3 in the plate G. I-I4 indicates a worm held against rotation in relation to the shaft G5 and in mesh Ywith the'segmental nut H. The nut H Y be prevented. It will be seen in Figure 6 that the opposite faces of the projection H5 are rounded off as at H8, for rolling contact with the bottom of the plate G and with the securing washer H9 respectively. Between the washer H9 and the head H10 of the screw H7 is pressed a spring H11.

The supporting structure E2 is provided with elongated bosses J opposed to the adj ustable abutment members J1 mounted in the top of the frame.

It will be realized that whereas I have described and shown a practical and operative device, nevertheless many changes might be made in the size, shape, number and disposition of parts without departing from the spirit of my invention. I therefore wish my description and showing to be taken as in a broad sense illustrative and diagrammatic rather than as limiting me to my specific showing.

For example I illustrate in Figure 8 a variant form of knob in which I employ a spring II compressed between the bearing sleeve K1 of the shaft G5, and the knob. This spring exerts a constant braking function to prevent unintended rotation of the shaft at any setting.

The use and operation of my invention are as follows:

I find it desirable to effect an adjustment of the gauge plate, and particularly of the arcuate edge thereof, in relation to the knife B. I may eect this adjustment either by the means shown in Figure 5, namely the nut E4 with the oversize apertures E7. I may also obtain a certain tilting of the entire supporting structure, as by adjustment of the members J1.

In order to prevent unintended movement of the knob, I may employ yielding working means. In the form of F i gure G the segmental nut H is yieldingly thrust against the worm H4. This yielding thrust not only has a braking action on the knob, but also serves to compensate for wear of nut and worin. As shown in Figure 3 I may provide a supplemental locking action for the neutral setting of the gauge plate, namely the engagement of the ball G1s with the recess G12. In the form of Figure 8 the spring K exerts at all times a braking action and may be used either alone or in combination with the segmental nut H to give the necessary braking action and takeup of wear.

I claim:

l. In a slicing` machine which includes a rotary knife and means for rotating it and a. work support and means for guiding said work support across the face and past the cutting edge of the knife, a gauge plate and a support therefor, meanefor moving said gauge plate and support toward and away from the cutting plane of the knife, including a shaft and means for rotating it, a worm n sadishaftv and asegmental nut, 4movably mounted ionthe gauge platesupportzfor float-f ing movement about transverse axes, yielding means fort thrusting said nut'into opera- ,5 tive engagementr with the worm, and means for preventing'transverse .movementk of said nut inrelationy to said worm and shaft.

2. Inaslicing. machinewhich includes ,af

rotaryknife and means lfor rotating it and ya worksupportrand means for` guiding said work support' acrossl the faceV and past the.

cuttingiedge of thegknife, aga-nge plate and a supporttherefonineans for moving said gauge `plate and` support toward: and away from the. cutting plane of the knife, includingra shaft and means forrotatingl it,.aworm I on saidshaft anda-segmental nut, movably mounted on the gauge plate supportfor floaty ing movement about axes disposed longitudi- 2ofnally. of'and transversely ofthe axis ofthe wornn-meanslfor guiding the .f movement of said nuttowardandfaway from the axis ofA y' the worm, and for preventing any substan tial transverse movement o fs'aidnut across '25" said :shaft and axis;

from the cutting plane of the knife including a .worm and means -for rotating it, a segmental s'Vnut movably and. looselyV mounted on the gauge plate-support, said nut being freely tiltable within predeterminedlimits about axes extending llong itudinally and ltransverselyof the axisof rotation ofthe worm, and means 4 to maintainthe-nut 'in operative engagement with. the: worm. Y

4; InV a slicing Imachine which includes .a

rotary knife and means for rotatingfit,` and a work support and means for guiding the workV support across-thefaceand pastthe cutting edge of the knife, a gauge plate and a support therefor, means for moving said gauge plate and support toward and awayfrom the cutting plane of the knife including a worm and means for rotating it, a segmental nut movably and loosely mounted on the gauge plate support, a guide upon which said nut is slidably mounted said nut having material tilting movement with respect thereto, *said guide being spaced laterally from the axis of rotation of the worm and limiting means for preventing any material degree of rotation of Vthe nut about said guide and also for preventing any appreciable degree 601 of axial movement of the nut along the worm. A5. In a slicing machine which includes a rotary knife and means for rotating it, and

a Work support and means for guiding the work support across the face and past the cuttingr edge of the knife, a gauge plate and aV support' therefor, means fon movingsaid c gauge plate -f and support toward and awayv` from the-cuttinggplane ofthe knifeincluding a worm and means for rotating it, asegmental nut movably and `looselyinounted on the-` gauge platesupport, and confining members, associated with said nutand adapted to preventzmovement of saidrnut alonggthe axisfof rotation of'` the worm,xsaid nut being free within predetermineddimits.to tilt in its axially confined ,positionaboutan axis substantiallyparallelto the axis of rotation of the worm. Y a i 6.` In a slicing `machine: which includes a rotary. knife andmeans for rotatingit; and, a A work support and means for, guiding the work support acrossltheface and pastthe cutting edge fof the knife, a gauge plate and` a support therefor,.means for moving said gauge. plate and support toward and away fromthe cuttingplane of the knifeinclud-v ing a worm and means `for rotatingfit and a segmental nut-Lmovablyrand loosely mounted on the gaugeplate support, andfa universal tilting connection between-saidnut `and the gauge plate f support.

7.' Ina slicing machinewhich includes a y rotary knife and means for rotating,it,and a work support and-means for guidinggthework support `across the face and pastthe cutting edge of the knife, a gauge plate and a support,- therefor, meansV for moving said gauge plate and" support towardg and f awa-y from :the cutting plane of .the-knife includingv afworm and means for rotatingit andl a segmental nut movablyc and loosely 'mounted on 1 the gauge; plate support, ,an arm carried by said nut, jand a universal tilting connection between the arm ofI said nut i and the gauge plate support at afpoint disposed-laterally of the axis of :said worm, andfmeans for pyreventing movement of the4 nut vvalong-the axis of rotation of the worin., l

rotary knife andmeans for rotating rit, and awork ,supportA and means for guiding vthe l work support aorosszthe face and past the cuttingedge: of the knife, a-gauge plate and a support therefor, means` forfmoving said gauge plate and Asupportl toward and awa-y from the cuttin'gplane` of the knifeincluding aworm and means fornrotatingitand a segmental nutmovably and loosely mounted on the gauge plate support, and a'ball and socket connection between the nutzand the support.

9; In Va slicingvmachine which includesa 8.` InV a slicing maehinewhich includes al rotaryknife and means for Vrotating it, anda work supporta-nd means for guiding thework support acrossv .the face and past the cutting edge of the knife, a guage plate and a support therefor, means for fmoving, said vgaugek plate` and support; toward.l and away` from ythe cutting'plane of the knifeincludinga worm and means-forrotating it,- a-segmentalnut having a laterally extending arm by which ther-'nut is movably. and loosely mounted on the gauge plate support, and a ball and socket connection between the arm of the nut and the support at a point disposed laterally of the aXis `of rotation of the worm, and yielding means Y from the cutting plane of the knife including a worm and means for rotating it and a segmental. nut movably and loosely mounted on the gauge plate support, and a ball and socket connection between the nut and the support, and yielding means tending normally to thrust the nut into contact with the support, and additional yielding means tending to thrust the nut into contact with the worm.

1l. In a slicing machine which includes a rotary knife and means for rotating it, and a work support and meansfor guiding the work support across the face and past the cutting edge of the knife, a gauge plate and a support therefor, means for moving said gauge plate and support toward and away from the cutting plane of 'the knife including a worm and means for rotating it and a segmental nut movably and loosely mounted on the gauge plate support for tilting movement about transverse axes, and abutments associated with the support, said abutments being adapted to permit movement of the nut to and from the axes of rotation of the worm and to prevent movement of the nut along the worm, the nut being tiltably mounted between said abutment-s.

l2. In a. slicing machine which includes a rotary knife and means for rotating it, and a work support and means for guiding the work support across the face and past the cutting edge of the knife, a gauge plate and a support therefor, means for moving said gauge plate and support toward and away from the cutting plane of the knife including a worm and means for rotating it, a segmental nut, an arm carried by the nut and eX- tending laterally of the axis of rotation of the worm and by which the nut is movably and loosely mounted on the gauge plate support for tilting movement about axes extending longitudinally of and transversely of the axis of rotation of the worm, and abutments associated with the support, said abutments being adapted to permit movement of the nut l to and from the axis of rotation of the worm said worm.

13. In a slicing machine which includes a rotary knife and means for rotating it, and a work support and means for guiding the work support across the face and past the cutting edge of the knife, a gauge plate and a support therefor, means for moving said gauge plate and support toward and away from the cutting plane of the knife including a worm and means for rotating it, a segmental nut movably and loosely mounted on the gauge plate support, said nut being tiltable about axes extending longitudinally of and transversely of the axis of rotation of the worm, means for maintaining the nut in operative engagement with the worm, and stop means associated with said nut and gauge plate support for limiting the range of tilting movement of the nut about both of said axes.

14. In a slicing machine which includes a rotary knife and means for rotating it, and a work support and means for guiding the work support across the face and past the cutting edge of the knife, a gauge plate and a support therefor, means for moving said gauge plate and support toward and away from the cutting plane of the knife including a worm and means for rotating it, a segmental nut movably and loosely mounted on the gauge plate support, a guide upon which the nut is slidably mounted, said nut having inaterial tilting movement with respect thereto, said guide being spaced laterally from the axis of rotation of the worm and limit-ing means for preventing any material degree of rotation of the nut about said guide and also for preventing any appreciable degree of axial movement of the nut along the worm, means for urging the nut yieldingly into operative engagement with the worm, and resilient means associated with the guide for yieldingly urging the nut into engagement with said support.

Signed this 28th day of June, 1929.

WILLIAM J. CAMPBELL. 

